Type-writer carriage-return mechanism.



E. CASTAEDA. -f TYPEVWRITER CARRIAGE RETUR MECHANISM.

lm-,mwa me. 19,1916.

AAPPLICATION FILED MIVAR. 3. 1916.

` 2 SHEETS-SHEET 1.

' EDUARDO CASTAEDA,

F MONTEREY, MEXICO, ASSIGNOR OF ONE-HALF' T0 JOSE runnen, or MONTEREY,Mexico.

TYPE-WRITER CARRIAGE-RETURN MEGHANISM.

-hereby declare the following tobe a full,

clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertainsto make and use thefsame, reference being had to the accompanying drawings, and to lettersor jgures of reference marked thereon, which form a part of'y thisspecification.

My invention relates to carriage return mechanisms for attachment/.totypewriting machines, and has for its object to effect the ,returnor`movement of the carriage to and fro by a short movement of a lever,key,

or the l1":"e,'f,or"the purpose of returning the carri;.ge tof'positionfor writing a new line, of reciprocating the carriage quickly tofacilitate the reading of matter' already written, of setting thecarriage at any desired point4 along the line, or of stepping thecarriage forward, in lieu of actuating the usual letter spacing bar.

In order to maintain a short movement of the lever, key, or otheractuator, I provide a planetary mechanism Jfor taking up the flexibleconnection connected to the c'arriagel In order that my inventionomay befully` understood, I have shown my invention applied to a. well knowntypewriter in the accompanying drawings, wherein like parts are similary designated, and in which- Figure 1 is a plan view `oi so much of aitypewriter as is necessary to illustrate my invention, the carriagereturn mechanism being shown in plan; Fig. 2 is aside elevation ot thelever mechanism at the right hand side of the machine; Fig. 3 is a sec-vtion on line 2-2, Fig. 2. 4 is as elevation of the mechanism at thelefthand of the carriage for actuating the escapement release. Fig. 5 isa side elevation thereof; Fig. 6 isa modification of Fig. 3, and Fig. 7

is a lan view of one form of'su ortino D or frame plate. v

The lever mechanism at the right hand side of the machine comprises anysuitable form of frame-plate 11, Fig. 7, shaped to conform to themachine to Awhich the mech- Specification of Letters Patent.

Patented Dee. 19, 191e.

Application led March 3, 1916. Serial No. 81,895.

anism is to be applied.l In the mechanism `herein shown, the frame-plateof sheet metal is provided with a rectangular `slot 2,

adapted to take around a bar a forming partof the typewriter, and isalso providedv with a hole for thereception' of a bolt b also formingpart of the typewriter.

The bar a, is provided with a nut c by means of which and the bolt b theplate is held in position on thev typewriter. The

base plate is provided with an inwardly.

bent shoulder or stop 3' for the arcuate rack, andan outwardly bent stop4 adjacent thereto for the actuating lever. This plate has an uprightextension 5, and a lateral, substantially horizontal extension 6 forminga continuationA ofa' portion l7 bent at right angles to the portionv 5.The portions 5 and 7 are substantially perpendicular to the base 1.Mounted in the upright portion is a shaft or bolt 8, Fig. 3, and on thisbolt is placed a sleeve 9, and a rack 13, both held between a washer 10,adjacent the boltv head, and anut 11 on the end of the bolt, said nuthaving a collar or bearing 12.

On the bolt 8 is placed an arcuate rack 13; 'the forked ends 14C of alever 15 also pivot around the bolt, and between the por-v tion 5 of thebase-plate and on the right hand fork end 14 is placed a coil-spring16.' Mounted on the fork arms 14 of lever 15 are a pinion 17 and a cordpulley 18 rigidly connected together. One end of the coilspring 16 hooksover one of thefork arms 14;, as shown at 19, Fig. 2. On the portion 5of the frame plate 1 are mounted two guide pulleys, 20 and 21, betweenwhich is guided the flexible connection` or cord 22 to a horizontalpulley 23 mounted on the horizontal frame extension 6. This frameextension 6- is provided with a stationary cord guide 24 having an'V eyeor hook eind 25, more clearly shown in Fig.A 2; the cord then passes infront of the carriage and is4 bent at substantially righbangles thereto.

. detachably connected, andv also an escapement disengaging lug in theform'of a lever whose nose36 is arranged to engage the escapementrelease 'button g lever, or the like, on the carriage. This button,lever, or the like eii'ects` the'.disengagement of the carriage rack andescapement mechanism of the typewriter so as to permit the carriage tobe freely moved. When the lever 35 is moved to the dotted line position,Fig.,4, the'escapement button g is not actuated by 'a pull on Ithe cord22, and the carriage is returned inthe customary manner withoutdisengaging the rack 4 and escapement mechanism In Fig; 6I have shown amodificationin lieufof lever 35 on the end of the arm 30a. In this formI secure to the arm 30Il a short cylinder 37 having a notch 38 therein.

l Loose within this cylinder is a smaller sleeve 39 provided with a pin40 arranged to enter the slot or notch 38. Screwed into the sleeve 39-isa screw 41 having a head 42, and on the screw is a spring43 includedbetween its head and a washer 44, said washer abutting against the endof the cylinder 37. As shown in Fig. 6, the pin 40-rests against theright hand edge of cylinder 37 and holds the-screw 41 in position toengage the button g. By rotating the sleeve 39 so that the pin ,'40 willbe opposite the slot 38, the spring 43 will draw the pin 40 into saidslot or notch vand permit the screw 41 to move away from button g adistance suflicient to prevent engagement therewith when the cord 22 isdrawn. By rotating the screw- .41 it can be adjusted to project to agreater orless extent from sleeve 39, so as to comfpensate for slightdifferences in the position of the button g on different typewriters.

In order to brace the upper partof the frame 1, Fig. 7, I providea brace45, Fig. 1, extending between a portion of the frame of the machine andthe extension 5, and preferably secured, by or to the pin forming thestub shaft for pulley 20. rIhis bracemay be omitted if desired. In orderto operate the machine in the customarymanner the connection 26 may beremoved from pin `27 and hooked over a hook A47 on the left hand end ofthe machine, shown in Fig. 1, whereupon the carriage-return mechanism isrendered inoperative, and the typewriter may be operated in thecustomary manner.

exerting sufficient pressure on the of the rack, and to return thecarriage it is Y only necessary to move the lever downward.

The carriage may be shifted by means of the lever 15 from anintermediate position to either the right or left. WVheii said lever isdepressed, the cord 22 is t'ensioned, drawing the end 3()a of lever 30to the right, `thus causing the nose 36 of lever 35 to so move thebutton gthat the escapement mechanism is rendered inoperative the sameas when the button is pressed by a finger of the operator. The force ofthe spring, that operates to move the carriage to the left during thewriting, now exerts a pull on the cord 22 tending to raise the lever 15.As long as the latter is held by the operator against the actior of thespring, the escapement mechanism is inoperative and the carriage may bemoved to the left by the force of said raise, or

spring, by allowing the lever 15 to right by the carrlage may be movedto the overcome the force of the spring. When the carriage is beingmoved to the left, as above described, suflicient pressure must beconstantlyvI exerted on the lever to prevent the cord 22 from becomingslack, otherwise the.

escapement will operatel to stop said movement. The carriage may-bestopped during its movement in either direction at any desired point bysuddenly releasing the lever 15. When. the latter is released, thecord22 lever tov becomes slack, the pressure `of nose 36 on button g ceases,,and allows the escapement mechanism to`operate instantaneously, the

same as when the button is released by the finger of the operator'when,the attachment is not employed. The carriage may be steppedforward by operating the lever 15 in the same manner as the space bar ofthe typewriter is operated. Should the carriage be mpved 'by hand in theusual manner, `insteadof by lever 15, spring 16, whose hooked end 19(Fig. 2) engages over one of the forks of lever 14, will have sulicientpressure onthis lever to cause it to move down and take up the slack oncord 22 during this manual movement. yIf it is desired to move thecarriage in one direction only, z'. e., to the right, and not permit itsmovement in thev reverse direction, lever 35 is shifted to the positionshown in dotted lines Fig. 4.

It is of course obviousthat my planetary mechanism can be usedl notonly'ffor shifting ias the carriage of typewriters, but may be used forshifting any movable carriage.

Claims:

l. In a typewriting machine, an escapenient actuating member movablewith the carriage, a flexible member connected with the actuatingmember, and means connected to the flexible member adapted to slackenand tension the latter to throw the actuating member into and out ofoperation respectively.

2. -In a typewriting machine, an escapement actuating member movablewith the carriage, a flexible member connected with the actuatingmember, and a pivoted lever connected to the iiexible member adapted toslacken and tension the latter to throw the actuating member into andout of operation, respectively.

3. In a typewriting machine, the combination with an escapementdisengaging device,

of an actuating member for the latter, a

flexible member connected with the actuating member, and a pivoted leverconnected to the iiexible member adapted to tens-.ion the iiexiblemember to actuate the disengaging device and to slacken said iiexiblemember to release said device.

..In a vcarriage return mechanism for typewriting machines, the'combination' of means for engaging the carriage iframe and escapementdisengaging device of the typewriter, a rack, a pinion engaging saidrack, a pulley connected. to said pinion and a flexible connectionconnected at one'end to said pulley and at the other end, to said means,and means to cause the ypinion to traverse the rack.

5. In a carriage return mechanism for typewriting machines, thecombination with means for causing the disengagement of 'the typewriterescapement, of a stationary arcu-A ate rack, a lever pivoted atthecenter of the rack, a pinion mounted on said lever lor engagement withsaid rack, a cord pulley on said pinion, and a flexible connectingmembeiconnected at one end to said pulley and at'the other end to saidmeans.

G. In a carriage return mechanism for typewriting machines, a pivotedlever mounted on the typewriter carriage, and means on said leverarranged to actu-ate the escapement disengaging mechanism, said leverpivoted `to permit said means to move toward and from said mechanism andsaid means mounted on said lever to permit adjustment of said means intooperative and inoperative positions.

7. In a carriage return mechanism for typewriting machines, an arml forattachment to the typewriter carriage, a -lever pivoted on said arm, asleeve on the end of said lever having a notch therein, a sleeve loosewithin said cylinder, a pin projecting from said sleeve, a screw in saidsleeve and adapted to project therefrom, a spring to elevate said screwand sleeve when said pin is moved opposite said notch, and means on saidlever for connection of an actuating cord.

8. In a carriage return mechanism for typewriting machines, a frameplate, an arcuate rack mounted thereon, a lever pivoted at the center ofsaid rack, a pinion carried by said lever and meshing with said rack, acord pulley on said pinion, a pivoted lever on the typewriting machinecarriage', means on said lever movable into .anvopei'ative and aninoperative position, for engaging the rack and escapement vdisengagingmechanism, and a cord extending along the typewriter carriage connectedat one end to said cord pulley and at the other end detachably connectedto said pivoted lever.

9. In a carriage return mechanism fortypewriting machines, thecombination with means for causing the disengagement of the typewriterescapement, of a stationary arcuate rack, a lever pivoted at the centerof the rack, a pinion mounted`on said lever for engagement with saidrack, a cord pulley on said pinion, a flexible connecting memberconnected at one end to said pulley and at the other end to said means,and a spring acting onsaid lever to take up the slack in said cord whenthe carriage is manually returned. f

In testimony that I claim the foregoing as my invention, I have signedmy name in 'presence of two subscribing Witnesses.

EDUARDO CASTAEDA.

Witnesses:

J osE BELDEN, HENRY ORTH, Jr.

